/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package Servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Quang Thao
 */
@WebServlet(name = "CartDetailServlet", urlPatterns = {"/CartDetailServlet"})
public class CartDetailServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException, SQLException, Exception {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here. You may use following sample code. */
            String name = request.getParameter("btnName");
            
            int choice = -1;
            if (name.equals("Pay"))
            {
                choice = 0;
            }
            else if (name.equals("Update"))
            {
                choice = 1;
            }
            else if (name.equals("Delete"))
            {
                choice = 2;
            }
            
            HttpSession session = request.getSession();
            Bean.CartBean cart = (Bean.CartBean) session.getAttribute("cart");
            Bean.AccountBean acc = (Bean.AccountBean) session.getAttribute("Account");
            
            switch (choice)
            {
                case 0:
                    {
                        List listBook = new ArrayList<Bean.BookBean>();
                        for (int i=0;i<cart.getListBook().size();i++)
                        {
                            Bean.BookBean book = (Bean.BookBean) cart.getListBook().get(i);
                            String test = "cbx" + i;
                            String delete = request.getParameter(test);
                            if (delete != null)
                            {
                                continue;
                            }
                            int quantity = Integer.parseInt(request.getParameter("txt" + i));
                            if (quantity > 0)
                            {
                                book.setQuantity(quantity);
                                listBook.add(book);
                            }
                        }
                        cart.setListBook(listBook);
                        session.setAttribute("cart",cart);
                        BO.CartBO cartBO = new BO.CartBO();
                        cart.setState("Chờ xử lý");
                        cart.setType("Sell");
                        cart.setDateArrive(new Date());
                        cart.setDateCreate(new Date());
                        cart.setID(cartBO.GetNewID());
                        if (cartBO.Add(cart) == 1)
                        {
                            cart.getListBook().clear();
                            session.setAttribute("cart",cart);
                            response.sendRedirect("Views/Cart/Result.jsp?result=true");
                        }
                        else
                        {
                            response.sendRedirect("Views/Cart/Result.jsp?result=false");
                        }
                    }
                    break;
                case 1:
                    List listBook = new ArrayList<Bean.BookBean>();
                    for (int i=0;i<cart.getListBook().size();i++)
                    {
                        Bean.BookBean book = (Bean.BookBean) cart.getListBook().get(i);
                        String test = "cbx" + i;
                        String delete = request.getParameter(test);
                        if (delete != null)
                        {
                            continue;
                        }
                        int quantity = Integer.parseInt(request.getParameter("txt" + i));
                        if (quantity > 0)
                        {
                            book.setQuantity(quantity);
                            listBook.add(book);
                        }
                    }
                    cart.setListBook(listBook);
                    session.setAttribute("cart",cart);
                    break;
                case 2:
                    cart.getListBook().clear();
                    session.setAttribute("cart",cart);
                    break;
            }
            response.sendRedirect("Views/Cart/Detail.jsp");
        } finally {            
            out.close();
        }
    }
    
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (SQLException ex) {
            Logger.getLogger(CartDetailServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (Exception ex) {
            Logger.getLogger(CartDetailServlet.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (SQLException ex) {
            Logger.getLogger(CartDetailServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (Exception ex) {
            Logger.getLogger(CartDetailServlet.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
